Ink jet apparatus with preloaded diaphragm and method of making

Details Ink jet apparatus with preloaded diaphragm and method of making Ink jet apparatus with preloaded diaphragm and method of making

1982-01-04

1983-11-29

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

044183550

ABSTRACT:
An ink jet apparatus comprises a chamber having a diaphragm preloaded to a deformed position when the transducer is in the de-energized state. Upon energization of the transducer, the diaphragm returns to a substantially planar condition so as to permit filling of the chamber from an inlet prior to firing a droplet from a chamber orifice when the transducer is de-energized and the diaphragm again assumes it preloaded, deformed condition.

REFERENCES:
patent: 4072959 (1978-02-01), Elmquist
patent: 4115789 (1978-09-01), Fischbeck
patent: 4367478 (1983-01-01), Larsson
patent: 4383264 (1983-05-01), Lewis

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